On Tue, Jul 05, 2011 at 09:53:19AM +0200, Arjen Smedes wrote:
> Wthout brackets I get an "Unknown range operation".
This means that there's no valuerangeprocessor set for the prefix "ata".
I don't know much about djapian, but at the Xapian API level the setup
required is described here:
http://xapian.org/docs/valueranges
Cheers,
Olly